2V0-41.24 Question 136
Select 3An organization is deploying VMware NSX-T Data Center to provide high availability for their Tier-1 Gateways. The network administrator needs to decide between active-active and active-standby modes. Which of the following statements correctly identifies the characteristics and use cases of these modes?
- A
Active-active mode is suitable when distributed workloads need to scale across multiple hosts.
- B
Active-standby mode is preferred for stateful services such as NAT and DHCP.
- C
Active-active mode ensures that only one node processes traffic at a time to avoid split-brain scenarios.
- D
Active-standby mode automatically distributes incoming traffic across all available Tier-1 Gateway nodes.
- E
Active-active mode requires Equal-Cost Multi-Pathing (ECMP) to distribute traffic effectively.
Show answer and explanation
Correct answers: A, B, E
Explanation
In VMware NSX-T, active-active mode is used for scalability and distributed workloads by enabling multiple nodes to process traffic simultaneously. This requires ECMP for effective traffic distribution. Active-standby mode, on the other hand, ensures high availability for stateful services by designating one node as active and another as standby to maintain consistent state synchronization. Understanding the characteristics and use cases of these modes is essential for designing a resilient and efficient network architecture.
- A. Correct.
Active-active mode is designed to scale workloads across multiple hosts by allowing multiple nodes to process traffic simultaneously, making it ideal for distributed workloads.
- B. Correct.
Active-standby mode provides high availability for stateful services such as NAT and DHCP, as these services require consistent state synchronization, which is better handled in an active-standby configuration.
- C. Incorrect.
This statement is incorrect because active-active mode allows multiple nodes to process traffic simultaneously, and mechanisms such as ECMP are used to prevent split-brain scenarios.
- D. Incorrect.
This is incorrect because active-standby mode does not distribute traffic across all nodes. Instead, only the active node processes traffic while the standby node remains idle until a failover occurs.
- E. Correct.
Active-active mode uses ECMP to effectively distribute traffic across multiple active nodes, ensuring scalability and high availability.